NGC 6709 is an open cluster of stars in the equatorial constellation of Aquila, some 5° to the southwest of the star Zeta Aquilae. It is situated toward the center of the galaxy at a distance of 1075pc.
This cluster has a Trumpler class of IV 2 m, and is considered moderately rich with 305 member stars. It is around 141 million years old; about the same as the Pleiades. The core radius of NGC 6709 is and the tidal radius . It contains two Be stars and one of them is a shell star. There is one candidate red giant member.
On the evening of November 13, 1984, David H. Levy discovered his first comet less than a degree from this cluster.